RE: smoking in the tree stand?
I'm an avid smoker! Love the taste. It's gonna kill me someday, and I know I should quit, blah, blah. Yet, somehow, when I go hunting, I have no real problem not smoking. Ever walk into a room an hour after smoking and someone says "wow, were you just smoking?" (or tried to hide it from your wife?) If a human can smell it today, a deer smelled it yesterday. Think about this also, if you need to leave the stand, the odor is in your clothing and will stay until you wash them. Kinda defeats the purpose of cammoflauge, cover scent, etc. Especially if you stalk instead of using a stand.
I usually save my smoking for the night around the campfire. For some reason,a good cigar at night instead of 10 cigarrettes during the day is much better when I'm camping/hunting.